The first car seat that communicates
with your smartphone

How IAlert Works


True Fit IAlert Convertible Car Seat C685

Available exclusively at


Free IAlert™ App

*The IAlert app works with most smartphones. Visit your app market or store to determine if your phone is compatible with IAlert.


Your alert settings

True Fit IAlert

Sit back, relax and enjoy the ride.

Car Seat Features

True Fit SI (model C685)
Removable headrest for better rear-facing installation, can be used rear facing with headrest for infants up to 35 pounds.
Easy-to-read center angle indicator with two position settings
Easy adjust, no rethread harness for use to 65 pounds
Multi-position crotch strap adjustment
Easy-off pad, snaps on and off with out rethreading harness
Color-coded belt paths for easy installation
Built-in lock offs for both rear-facing and forward-facing installation, external LATCH storage
Two-position recline for better installation
Deep side wings, side-impact tested to international standards
For use with children 5-65 pounds and up to 50' tall
The patented Rebound Energy Management™ system--a flip-up rebound bar that actually helps manage the rebound in the unlikely event of a crash.

Loving them is easy.

Now protecting them is too.



Have a question? Check this page for frequently-asked questions and their answers.

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Instructions & Tips

True Fit IAlert convertible car seat instructions and tips on proper use.

Press Kit

The latest True Fit IAlert car seat press release and media contact information.

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Contact Us

If you can't find an answer to your question, please contact Customer Service for help.

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End-user license agreement View: iOS / Android

What others are saying

I know that my Olivia has a horrible habit of attempting to unbuckle her car seat and I can't count how many times I have had to pull over. With the IAlert I will be alerted immediately if she does this.

With this innovative new product, The First Years has raised the bar on car seat safety.

The new generation of First Years Convertible Car seats communicates with an app with reminders for parents […] This is a pretty amazing tool that can help parents.